Perhaps you should try some spelling variations:
chet triet » chuyen triet, thuyet triet
ban thanh » ban hanh, ban hang
thanh le » thinh le, thanh ve, thanh de
le chet » la chet, se chet, le chien
xuc ban » duc ban, cuc ban, quoc ban
su sach » so sach
nang ro » nang co, nang ho, nang ra
vu sach » vu bach, vu khach
ro hoi » co hoi, o hoi, mo hoi
va cam » va cham, va cac, va cao
ve cai » va cai, ve cac, ve tai

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (vu sach)) ky nang ro hoi. hieu ((ve cai) or (va cam)) xuc ban thanh le chet triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky nang ro hoi. hieu ((ve cai) OR (va cam)) xuc ban thanh le chet triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ky nang ro hoi. hieu ((ve cai) or (va cam)) xuc ban thanh le chet triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) ky nang ro hoi. hieu ((ve cai) or (va cam)) xuc ban thanh le chet triet*.